class_docstr: Write values to mask of zero-initialized array
class_docstr_tok: ["Write","values","to","mask","of","zero-initialized","array"]
code: def forward(self, inputs):
      (x,) = inputs
      xp = backend.get_array_module(x)
      y = xp.zeros(self.mask.shape, x.dtype)
      y[self.mask] = x
      return (y,)
  
file_path: chainer/chainer/functions/normalization/l2_normalization.py
imports: import six
  from chainer import backend
  from chainer import function_node
  import chainer.functions
  from chainer import utils
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the _SetItemZero obj's underlying member method code with example usage: obj.forward(inputs) and returns: y